diff --git a/visualc/VS2010/mbedTLS.vcxproj b/visualc/VS2010/mbedTLS.vcxproj
index 0d24644442..65730cd413 100644
--- a/visualc/VS2010/mbedTLS.vcxproj
+++ b/visualc/VS2010/mbedTLS.vcxproj
@@ -172,6 +172,7 @@
     <ClInclude Include="..\..\include\mbedtls\ecdsa.h" />
     <ClInclude Include="..\..\include\mbedtls\ecjpake.h" />
     <ClInclude Include="..\..\include\mbedtls\ecp.h" />
+    <ClInclude Include="..\..\include\mbedtls\ecp_internal.h" />
     <ClInclude Include="..\..\include\mbedtls\entropy.h" />
     <ClInclude Include="..\..\include\mbedtls\entropy_poll.h" />
     <ClInclude Include="..\..\include\mbedtls\error.h" />